Mold appliance.



PATENTED AUG. 18, 1908.

J. MoL. PETTYJOHN. MOLD APPLIANCE.

APPLIOAIION FILED APR. 30, 1907.

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PATENTED AUG. 18, 1908. J. MOL. PETTYJOHN.

MOLD APPLIANCE 7 APPLICATION FILED APR. 30, 1907.

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By v .No 896,459. PATENTED AUG. 18, 1 90 s.

J. MoL. PETTYJOHN.

MOLD APPLIANCE APPLIOATION FILED APR. 30, 1907.

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WITNESSES: l9 5 '93 26 INVENTOR JJIZ.Fef/yja/rn filial Mays JOHN McLARENPETTYJOHN, OF TERRE HAUTE, INDIANA.

MOLD. APPLIANCE.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed April 30, 1907. Serial No. 371,180.

To all whom it may concern:

Be it known that I, JOHN MoLAnEN PETTY- JOHN, a citizen of the UnitedStates, residing at Terre Haute, in the county of Vigo and State ofIndiana, have invented certain new and useful Improvements in MoldAppliances and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in mold appliancesand more particularly to that class adapted to be used for moldingblocks for building purposes and like constructions, and my object is toprovide a mold of this class which can be readily assembled together andseparated to release the molded article.

A further object is to provide means for holding the several parts ofthe mold together while material is being placed in the mold.

A still further object is to )rovide means for forming various shapedbiocks when desired.

A further object is to provide means for forming faces upon the blocksof various contours and designs.

Other objects and advantages will be here inafter referred to and moreparticularly pointed out in the claims.

In the accompanying drawings which are made a part of this applicationFigure 1, is a perspective view of my improved form of mold showing oneend thereof in readiness to receive material to form the block whileparts of the opposite end are removed and shown resting upon the mold.Fig. 2 is a longitudinal, central, horizontal sectional view through themold in its assembled ositi on. Fig. 3 is a vertical centrallongitudinal sectional view through the mold. Fig. 4 is a transverse vertical sectional View as seen on line 44, Fig. 3. Fig. 5 is a similarView as seen on line 5- 5, Fig. 3. Fig. 6 is a perspective view of themold showing parts thereof removed from position and showing theattachment employed for forming L shaped blocks. Fig. 7 is a perspectiveview showing the mold in position to release the block. Fig. 8 is aperspective view showing the mold and attachment therefor before placedin position. Fig 9 is a plan view of a latch employed for securing thespacing devices in position on the mold. Fi s. 10, 11, and 12 are planviews of the parts orming the clamping mechanism cates the base of myimproved mold, said base having an oblong cavity 2 therein, around theedge of which is formed a ledge 3, u on which are adapted to rest plates4, said ates being employed for forming the faces of the blocks, theupper surface of said plates having various depressions therein. Theplates 4 may be of sufficient length to extend the full length of thecavity in the base 1, or may be made of shorter lengths as desired toform two or more blocks at the same time, and the plates are" secured inposition upon the ledge in any preferred manner, as by securing to thecentral portion of the plate, a locking bar 5, said bar being held inposition on the plate by means of a bolt 6. The looking bar is ofsuflicient length to extend below and engage the ledges when disposed atright angles to the longitudinal plane ofthe cavity, and is held inengagement with the ledges, by directing a wing nut 7 onto the bolt 6,and in order to facilitate the removal of the bar when the plates are tobe removed from the base, the bar is provided with a slot 8, whichextends inwardly from one side of the bar, in which the bolt 6 isseated, and in removing the bar, the nut 7 is turned outwardly on thebolt sufficiently to release pressure on the bar, when the bar may bemoved laterally and released from the bolt.

Extending along one edge of the base 1 is a frame 9, said frame beingdesigned to form one wall of the mold and has hingedly secured to eachend thereof doors 10 which form the end walls of the mold and said doorsare prevented from swinging upon their hinges 11 by meansof a pin 12 onthe base 1, entering a bore 13 in the lower edge of the doors, and itwill be seen that as long as the mold is resting upon the base 1, saiddoors will be held against swinging movement, the pins being locatedadjacent the free edge of the doors.

Extending upwardly from one wall of the base 1 are ears 14 through whichextend adjusting bolts 15, the inner ends 16 of said bolts being taperedand adapted to enter sockets 17, in the frame 9, the sockets beingflared so that the tapered ends of the bolts can have a pivotal movementin the sockets when the mold is turned in position to release the blockfrom the mold. The adjusting bolts are also provided with wing nuts 18so that the depth to which the tapered ends enter the sockets 17 canberegulated, this construction it will be seen that when the pins 12 arein enga ement with the bores 13, and the adjusting bolts in engagementwith the socket 17, the side and end walls of the frame will be heldagainst casual displace ment upon the base.

Resting upon the opposite edge of the base from that occupied by theframe 9 and en gaging the free edges of the doors 10 is a pallet 19which forms the opposite wall of the mold, and is secured in position bymeans of clamps, the body portions 20 of which are pivotally andadjustably mounted between ears 21 on the doors 10, the pivot pin 22being directed through registering openings 23 and through an eye 24 onone endof the body and slidably mounted upon the free end of the bodyportion 20 by means of a bolt 25, is a clamp arm 26, at the outer end ofwhich is an inwardly extending foot 27 which is adapted to extend overand engage the outer face of the pallet 19, the clam arm having anelongated slot 28 therein t rough which the bolt 25 extends and by whichmeans the clamp arm is permitted to move longitudinally on the bodyportion. The inner end of the clamp arm 26 is provided with lugs 29 and30 between which is located a cam 31, said cam being eccentricallysecured to the body ortion 20 by means of a shaft 32, and it wil be seenthat when the cam is rotated that the foot 27 will be 'moved into or outof engagement with the outer face of the pallet 19, and in order toreadily operate the cam, I provide a lever 33 which is also mounted uponthe shaft 32 and fixed to the cam 31 by means of a bolt 34. By thisconstruction it will be seen that when it is desired to securethe-pallet in position upon the base, the foot 27 of the clamp arm 26 isdirected into engagement with the outer face of the pallet and the cam31 then rotated which will result in moving the clamp arm 26 inwardlyuntil the foot engages the pallet, and when it is desiredto release thepallet the cam 31 is rotated in the opposite direction and the foot 27released from impingement with the pallet, when the body portion 20 mayrotate upon the pivot pin 22 and the foot 27 removed from contact withthe pallet, and in order to use pallets of different thicknesses theears 21 are provided with a plurality of the openings 23 so that thebody may be adjusted between the ears.

The frame 9 is provided with a longitudinally disposed slot 35 whichextends sub stantially the full length-of the frame and is adapted toreceive cores 36 employed in forming the openings in the blocks, andwhen two or more of the blocks are being molded at the same time, Iprovide core spacers 37 to hold the cores in position in the mold, saidcore spacers having shoulders 38 at each end thereof which engage theedge walls of the slot 35, and the spacers are held in position by meansof a latch 39 which is placed on the out side of the frame 9, and is ofsufficient length to extend beyond each edge of the slot 35, and issecured to the spacer by means of bolts 40, the upper bolt extendingthrough are inserted lengthwise through the slot 35 until the inner endsthereof engage the pallet 19 when the core is moved laterally. until oneedge thereof engagesone end of the slot 35, after which a core spacer isplaced in position and moved into engagement with the opposite edge ofthe core and fxed in this position by securing the latch with the bolts40.

When two or more of the blocks are to be molded I provide a partition 42which extends vertically' through the mold between the frame 9 andpallet 19 and the lower end thereof is placed between the meeting edgesof the plates 4 as shown in Fig. 3, while one edge of the partition issecured between the core spacers 37 as best shown in Fig. 2 of thedrawings, thereby positively fixing the partition in the mold.

In operation, the frame 9 and pallet 19 are secured in position on thebase after which the material forming the block is tamped in the moldand on to the frames 4 until the lower edge of the slot 35 is reached,when the cores 36 are placed in the mold and secured in position, thenthe material is tamped around the core to the upper edge of the mold andthat portion of the material extending above the mold is then struck offin "the usual manner thereby finishing the block.

After this 0 eration is performed the mold is turned until the samerests upon the pallet 19, this result being readily accomplished bygrasping handles 43, which are secured to the frame 9, and after themold is thus disposed the earns 31 are operated to release the clamparms from the pallet, and after the clamps have thus been released theyare swung outwardly on their pivot pins until entirely released from thepallet. The lower edge of the frame 1 is then swung outwardly until thepins 12 are out of engagement with the bores 13; said base pivoting onthe tapered end of the adjusting bolts 14 then by swinging'the doors 1Ooutwardly on their hinges the frame 9 can be readily removed fromposition around the blocks, the cores 36 having previously been removedfrom the Il10ld. 13() For convenience of handling the blocks while intheir green state they are left upon the pallet until sufficiently driedto be handled without danger of destroying the same, and as soon as theparts of the mold have been removed from around the blocks, the frame isagain placed in position over the base and a new pallet secured inposition after which the molding operation is repeated.

When a block is made the full length of the mold the partition 42 isdispensed with, and when more than two blocks are molded at the sametime, an additional number of partitions are employed to properly dividethe blocks in lengths, and when a single block is being molded but oneplate 4 is used, While when a plurality of the blocks are being moldedat the same time, a plate for each block is employed, and if desired along and a short block may be molded at one and the same time byproperly spacing the cores and partition, in which case one of theplates 4 is shorter than the other.

In forming the blocks for the corner of the building it is preferable tohave said blocks substantially L shaped and to this end I provide anattachment for the mold which consists of an auxiliary frame 44, whichis substantially L shaped and bolted to the upper edge of the frame 9,and at one end thereof, one section of the auxiliary frame extendingacross the upper edge of the mold and resting upon the upper edge of thepallet 19 and to compensate for the increased height produced by theauxiliary frame, I dispense with the door 10 at this end of the mold andemploy an auxiliary door 45, which is secured in position the same asthe door 10, and is provided with the usual form of clamp for securingthe pallet in position, While the pallet is provided with an extension46 to form a wall for the open end of the auxiliary frame, the operationof the mold in this instance being the same as when the straight blockis being molded, these features being best shown in Figs. 6, 7 and 8 ofthe drawing.

It will now be seen that I have provided a very cheap and economicalform of mold and one that can be readily and quickly operated, and itwill further be seen that blocks of various shapes and sizes may beproduced the faces of which are formed with various designs.

What I claim is:

1. In a mold, a bottom frame-member, an additional frame-member,end-members and a pallet, said additional frame-member having upon theupper surface of one longitudinal portion thereof, upraised sockets, andsaid bottom frame-member having applied to the outer surface of onelongitudinal edge thereof, upwardly extending ears and nutequippedad'usting bolts inserted through said ears and engaging said sockets,means to said additional frame-member and con-- necting means betweensaid pallet and said end-members.

2. In a mold, a bottom frame-member, endmembers, an additionalframe-member and a pallet, said additional frame-member having upon theupper surface of one longitudinal portion thereof, upraised socketshaving outwardly flared surfaces and said bottom frame-member havingapplied to the outer surface of one longitudinal portion thereof,upwardly extending ears, nutequipped adjusting bolts engaging saidflared sockets and adapted to serve as pivots for the outward tilting ofsaid additional frame-member, means for pivotally connecting saidend-members to said additional frame-member, and connecting meansbetween said pallet and said end-members.

3. In a mold, a bottom frame member, an additional frame-member, apallet and end members, said additional frame-member being equipped withsockets upon the upper surface of one longitudinal portion thereof andsaid bottom frame-member having a corresponding portion thereof providedwith ears upon its outer surface, nut-equipped adjusting bolts insertedthrough said ears and engaging said socketsto serve as pivots for theoutward tilting of said bottom framemember, means for pivotallyconnecting said end-members to said additional framemember andconnecting means between said end-members and said pallet, includingclamping members engaging said pallet and connected to additionalmembers having pivotal connection with apertured lugs or ears on saidend-members and means for actuating said pallet clamping-members.

4. In a mold, a bottom frame member having insertible bottom plates, anadditional frame member having said bottomframe member hinged or pivotedthereto along a longitudinal edge thereof, end members also hinged orpivoted to said additional frame member and having apertured lugs orears, a pallet and means for the retention of said pallet upon said endmembers opposed to said additional member, embracing clamping membersengaging said pallet and connected to additional members having pivotalconnection with said end member lugs or ears, and means for actuatingsaid pallet clamping members.

5. In a mold, a bottom frame member having insertible bottom plates, anadditional frame member having said bottom frame member hinged orpivoted thereto along a longitudinal edge thereof, end members alsohinged or pivoted to said additional frame member and having aperturedlugs or cars, a pallet and means for the retention of said pallet uponsaid end-member opposed to said additional frame member,

embracing clamping members engaging said In testimony whereof I havesigned my pallet and connected to additional members name to thisspecification in the presence of aving pivotal connection With said endtwo subscribing Witnesses. member lugs or ears and manually actuatedJOHN MOLAREN PETTYJOHN. 5 cams connected to said latter additionall/Vitnesses:

members and adapted to actuate said pallet GEORGE F. AsBURY,

clamping members. FRED. A. STALNAKER.

